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Junior Machine Operator Jobs in California (NOW HIRING)

Ichor Systems

CNC Mill Machinist

Scotts Valley, CA · On-site

$21.88 - $37.21/hr

Mentor junior machinists and support team development Position Requirements: * CNC machining ... machine shop, warehouse, and office. Occasionally, subjected to high noise levels from operating ...

Trillium Flow Technologies

Machinist III

Fresno, CA · On-site

$27 - $30/hr

This role is responsible for planning, setting up, and operating a variety of machine tools to ... Train and support junior machinists within mastered work cells as needed. * Plan work sequences and ...

Trillium Flow Technologies

Machinist III

Fresno, CA · On-site

$27 - $30/hr

This role is responsible for planning, setting up, and operating a variety of machine tools to ... Train and support junior machinists within mastered work cells as needed. * Plan work sequences and ...

Markful

Press Operator II

El Cajon, CA

$16.50 - $21.50/hr

Operates offline finishing equipment, including a UV coater and a soft-touch lamination machine ... Able to work independently and as a mentor to junior press staff. * A team player with a strong ...

New

Markful

Press Operator II

El Cajon, CA

$22 - $24/hr

Operates offline finishing equipment, including a UV coater and a soft-touch lamination machine ... Able to work independently and as a mentor to junior press staff. * A team player with a strong ...

New

Trillium Flow Technologies

Machinist III

Fresno, CA · On-site

$27 - $30/hr

This role is responsible for planning, setting up, and operating a variety of machine tools to ... Train and support junior machinists within mastered work cells as needed. * Plan work sequences and ...

Anduril Industries

GSOC Jr Operator

Costa Mesa, CA

$18.25 - $21.75/hr

ABOUT THE JOB As a GSOC Junior Operator, you will play a vital role in supporting the daily operations of Anduril's Global Security Operations Center (GSOC). Reporting to the GSOC Tactical Supervisor ...

A1J Technologies LLC

CNC Lathe Setup Technician

San Jose, CA · On-site

$26 - $33.25/hr

Provide feedback on tooling, fixtures, and programs to enhance future setups. * Assist in training operators and junior machinists on proper setup procedures. Work Environment * Machine shop floor ...

A1J Technologies

CNC Lathe Setup Technician

San Jose, CA · On-site

$26 - $33.25/hr

Provide feedback on tooling, fixtures, and programs to enhance future setups. * Assist in training operators and junior machinists on proper setup procedures. Work Environment * Machine shop floor ...

mul

Lithographic Press Operator

North Highlands, CA · On-site

$17 - $22.25/hr

The Lithographic Press Operator is an essential member of the team, responsible for the ... Ability to instruct and provide guidance to junior level press assistants Qualifications: * Must be ...

RimePro Inc

Header Operator

Los Angeles, CA · On-site

$35 - $60/hr

This position is responsible for setting up and operating multi-die progressive header machines ... Train and assist junior operators or trainees on proper setup, operation, and safety procedures.

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Junior Machine Operator information

What are the key skills and qualifications needed to thrive as a Junior Machine Operator, and why are they important?

To thrive as a Junior Machine Operator, you need a basic understanding of machinery operation, attention to detail, and a high school diploma or equivalent. Familiarity with manufacturing equipment, safety protocols, and sometimes experience with computerized control systems are typically required. Reliability, teamwork, and a willingness to learn are standout soft skills in this role. These skills ensure safe, efficient production processes and help maintain quality standards on the manufacturing floor.

What are Junior Machine Operators?

Junior Machine Operators are entry-level workers responsible for operating and maintaining machinery in manufacturing or production environments. They assist in setting up machines, monitoring their operation, and ensuring products meet quality standards. Junior Machine Operators often perform routine maintenance, troubleshoot minor issues, and follow safety protocols to maintain a smooth workflow. They typically work under the supervision of more experienced operators or supervisors while gaining hands-on experience in the field.

What are some common challenges faced by Junior Machine Operators during their first few months on the job?

Junior Machine Operators often encounter challenges such as learning to operate different types of machinery efficiently and safely, adapting to shift work or fast-paced production environments, and quickly identifying and resolving minor equipment issues. They may also need to familiarize themselves with quality control standards and reporting procedures. Support from more experienced colleagues and ongoing training are typically available to help new operators overcome these hurdles and build confidence in their role.

What is the difference between Junior Machine Operator vs Machine Operator?

AspectJunior Machine OperatorMachine Operator
CredentialsHigh school diploma, on-the-job trainingHigh school diploma, some certifications often preferred
Work EnvironmentEntry-level, supervised, manufacturing or production settingsMore autonomous, similar manufacturing environments
ResponsibilitiesAssisting with machine setup, basic operation, and maintenanceOperating machinery independently, troubleshooting, quality checks

The main difference between a Junior Machine Operator and a Machine Operator lies in experience and responsibility level. Junior Machine Operators are typically entry-level, requiring basic training and supervision, while Machine Operators have more experience and handle more complex tasks independently. Both roles are essential in manufacturing settings, with the Junior role serving as a stepping stone to becoming a fully qualified Machine Operator.

What are the most commonly searched types of Machine Operator jobs in California? The most popular types of Machine Operator jobs in California are:
What cities in California are hiring for Junior Machine Operator jobs? Cities in California with the most Junior Machine Operator job openings:
Junior Machine Operator jobs near you

CNC Swiss Screw Setup Machinist (2nd Shift)

ITT Micro-Mode Products Inc

El Cajon, CA

$21.50 - $29.25/hr

Full-time, Other

Posted yesterday

New

Job description

CNC Swiss Screw Setup Machinist (2nd Shift)

US-CA-El Cajon

Job ID: 2026-16750
of Openings: 1
Category: Operations

US-CA-El Cajon-3026

Overview

ITT Micro-Mode is seeking a Swis Screw Setup Machinist to join our precision manufacturing team in El Cajon, CA. This role is responsible for both setup and operation of Citizen L12 CNC machines to produce small, high-precision components for business-critical applications. The ideal candidate will have extensive experience with this type of machine, strong problem-solving skills, and the ability to independently manage setups, troubleshoot issues, and ensure consistent part quality in a fast-paced production environment.

Responsibilities
  • Set up and operate Citizen L12 CNC machines to manufacture precision components.
  • Interpret blueprints, CAD models, and setup sheets to ensure accurate machining and part conformance
  • Select and install appropriate tooling, fixtures, and machine offsets for each job.
  • Perform first-article inspections and make necessary adjustments to ensure compliance with specifications.
  • Monitor machine operations and make real-time adjustments to maintain quality and efficiency.
  • Troubleshoot and resolve setup and machining issues independently.
  • Document setup procedures and best practices for repeatability and training purposes.
  • Collaborate with programmers, engineers, and quality personnel to optimize machining strategies.
  • Maintain a clean, organized, and safe work environment in accordance with 5S and safety standards.
  • Perform routine machine maintenance and proactively report mechanical issues.
  • Mentor and support junior machinists and operators as needed.
  • Participate in Lean, Kaizen, and other continuous improvement initiatives.
  • Other duties as assigned.
Qualifications
  • High School diploma or GED required; technical training or certification preferred.
  • Minimum of 5–7 years of CNC machining experience, with at least 3 years operating and setting up Swiss-style CNC machines.
  • Strong experience with Citizen, Nakamura, Star, or Tsugami machines.
  • Proficient in reading and interpreting blueprints and GD&T.
  • Deep understanding of CNC controls, tooling, and machining principles.
  • Skilled in using precision measuring instruments and inspection techniques.
  • Strong attention to detail and commitment to quality and process control.
  • Ability to work independently and take ownership of setup and production outcomes.
  • Excellent communication skills and a collaborative mindset.
  • Willingness to work flexible shifts or overtime as needed.

Compensation details: 32.55-48.51 Yearly Salary


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